<div id="head-box">
    <ul id="ahead">
        <li>
            <div class="dropdown">
                <span id="head-my" class="dropbtn">登录</span>
                <div class="dropdown-content">
                    <span id="head-my-home" onclick="">信息</span>
                    <span id="head-my-set" onclick="">设置</span>
                    <span id="head-my-unlogin">退出</span>
                </div>
            </div>
        </li>
        <li id="my-history"><a>历史记录</a></li>
        <li>
            <img id="search-coin" src="img/搜索.svg" title="search">
        </li>
        <li>
            <input id="search-input" type="text" name="q" value="" placeholder="输入歌名" id="q">
        </li>
        <li>
            <span class="active">asedrfa Music</span>
        </li>
    </ul>
</div>